Re: [RFC PATCH] blk-core: remove blk_put_request()

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On 2/24/21 10:56, Christoph Hellwig wrote:
> On Wed, Feb 24, 2021 at 09:48:21AM -0700, Jens Axboe wrote:
>> Would make sense to rename blk_get_request() to blk_mq_alloc_request()
>> and then we have API symmetry. The get/put don't make sense when there
>> are no references involved.
>>
>> But it's a lot of churn for very little reward, which is always kind
>> of annoying. Especially for the person that has to carry the patches.
> Let's do the following:
>
>  - move the initialize_rq_fn call from blk_get_request into
>    blk_mq_alloc_request and make the former a trivial alias for the
>    latter
>  - migrate to the blk_mq_* versions on a per-driver/subsystem basis.
>    The scsi migration depends on the first item above, so it will have
>    to go with that or wait for the next merge window
>  - don't migrate the legacy ide driver, as it is about to be removed and
>    has a huge number of blk_get_request calls
>

Okay, thanks for the feedback, will try and get something together.




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